As the title says. It took me hours to find out why boundingBox and boundingBoxReal are returning waaaaay to large numbers. Then I have figured out: They handle vertices in the Memory LOD the same way as in other LODs. This is definitely unexpected behaviour and renders the bounding box function useless if you are in the need of (Memory) vertices outside the bounding box of a model. Once I remove the Memory LOD, boundingBoxReal returns useful values.

I suggest to skip the Memory LOD in the bounding box calculation.